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《Clean Coal Technology》 2008-06
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The fly ash preparation PAFC and the coagulation performance study

SUN Gen-xing,LIAN Pei-cong (College of Resource and Environment,Shaanxi University of Science and Technology,Xi'an070021,China)  
To study the mothod of with the fly ash and hydrochloric acid pickling waste water as raw materials to prepare coagulant polyaluminum chloride(PAFC),determine the best operation condition of acid diping process for the temperature of 80 ℃,reaction time 2 h,hydrochloric acid concentration of 4 mol / L.PAFC coagulant the best optimum conditions for the basicity is 2,n(Fe)/n(Al) is 1:1.coagulant of the dosage to 30 mg / L(effective content),pH to between 6.5~8.0,turbidity removal rate reached 91.86 percent,under the same conditions PAFC is superior to PFC,PAC.
【CateGory Index】: X773
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